Pump rein



Aug. 23, J P, A GAN PUMP REIN Filed Oct. 10. 1950 Patented Aug. 23, 1932UNITED STATES JAMES P. RATIGAN, 'OFVIJOSUANGELES, CALIFORNIA PUMP REINApplication filed October 10, 1930; Serial m. 487,687.,

This. invention relates to pump reins, a term that applies to certainmembers that constitute portions of the means that connectthewalking-beam with the polish rod of the pump. Sometimes the reinsconsist of flexible members, such as cables and at other times of rigidmembers such as rods; In the present instance, the rein is of the rigidtype.

In pumping an oil well, for example, it is desirable that the carrierbar or polish. rod grip approach'the' stuffing box as closely aspossible when the Walking-beam is at the bottom of its pumping stroke.The reason for this is that it minimizes the distance of fall of thestring of sucker rods in event of breakage between the polish rod gripand the walking-beam of any of the parts that connect them, and in caseof breakage, the polish rod grip drops upon the stufling box. This tendsto break the stufling box and also tends'to produce such strains in thesucker rods as to induce further breakage thereof. It is neceS- sary attimes to change the length of the i ertigal section, on the lineindicated by 3-3 pumping stroke and this is. ordinarily accomplished byadjustment between the crank and the pitman end of the walking-beam.Lengthening or shortening. the pumping stroke naturally changes therelation of the carrier bar-or polish rod grip to the stufling box, withreins of a given length.

Heretofore threaded adjustments have been used on the pump reins inorder that the carrier bar or polish rod grip will operate as closely aspossible to the stufiing box and such adjustments are slow and laboriousto make. Since two reins are employed, one on each side, the threadedadjustments also 1" 'th d'ttof: res'u ted 1n maccuracy m e a Jug men onoposite sldesof the openings ll with seats the distances between themembers that are connected with the reins thus tending to cant thepolish rod to one side or the other and produce more strain on one reinthan on the other.

p In using the above mentioned threaded ad justments it is alsonecessary to employ reins der that the carrier bar 'or polish rod/gripreins so that a single pair of reins can be used regardless of the largenumber and amplitude i The accompanying drawing illustrateslthe 1sockets13, the lower ends of Which are consti willfoperate as closely aspossible to the stu'fiiingbox. 4 An object of thisinventionisto'rsimplify the constructionwhereby the desiredfadjustmentsmay be effected seas to provide for the carrier bar or polish rod'gripoperating as closely aspossible tothe stufiing' box. .j j Anotherimportant object istoprovide' for relatively great adjustmentsin'length'of, the

of adjustments in the stroke of the walkingbeam.

. f Other objects andladvantages will appear in the subjoined detaileddescription.

invention: 7 V

Figure 1 is a longitudinal View of a pump rein. constructed inaccordancewith the provisions of this invention. 10 Figure 2 isanelevation of Fig. l from either side thereof.

Figure 3 is a longitudinal view, partly in Figures 4 and 5 arehorizontal sections on tively, Fig. 1.

Referring to the drawing, there are-provided two relatively adjustablesections, 7, 8.. Thesesections are in telescopic relation, the member 8slidingwithin the member 7. The member"? comprises longitudinallyextend- 111g spaced side bars 9 connected at intervals with crossmembers 10 that areprovided with vertical openings 11 through which therod Spasses.

Each ,ofthe cross members 10'is provided thelines indicated by 4+4 and55, respecor shoulders 12. In other words, eachofthe v openings llalongone ofits transverse axes,- extends from the inner-faceofoneof the bars9 to the inner face oftheother bar '9, and

theupper portionof each opening, along a1iother transverse axis thereof,is reduced in diameter by reason of the presence of. the:

shoulders 12. "Still another way of stating this construction is thatthe. cross members 10 are provided,'adjacent to the bars 9;,-with theother end of the member 7 and is provided in the projecting end with aneye 16 by which the rein may be connected with a carrier bar or polishrod grip. The other end of the rod 8 is provided with oppositely projecting lugs 17 which are of suflicient length so asto' rest on" theshoulders 12,'when the rod 8 is turned in order to register the-lugs 17withfthe sockets 13. Thus, the upper end ofthe rod 8 and its lugs 17together constitute a T-head. By moving the rod 8 further intothe'member 7, the lugs 17 will'be caused to disengage the sockets 13,whereupon the rod may I be turned through an angle of 90 so as toregister the lugs 17 with the portions, of the openings 11, that liebetween the pair of, shoulders 12 that. were engaged by the lugsbefore'saidrod was turned.

In the present instance, the member '7 is provided with five pairs ofshoulders 12, but it is to be understood that these pairs may beincreasedor diminished in number. It will be seen thatthe lugs 17 cannotbe disengaged from the shoulders 12 without first raising the rod 8 tobring the lugs 17 out of the sockets13. v I

Preferably, the underfaces of the lugs 17 or, in other words the facesof'said lugs that are adapted to engagethe shoulders 12, extend aslantinwardly and upwardly soas to conengaged with the shoulders, the'weightof the U u -the lugs 17'1to clear the sockets in which,

form to the downwardly and outwardly slanting shoulders 12,whereby whenthe lugs are sucker rods willtend to pull the bars 9 toward one anotherinstead of tending to spread said bars, as might occur'if the shoulders12 and underfaces of the lugs 17 were at' right angles to thelongitudinal axis of the member7." r Y The hereinbeforedescribed reinoperates as follows: The rein is connected between the'walking-beam andthe sucker rods of the .pump in'a manner well understood in the artrelating to oil well pumping. It is to be understood. that therein willbe ordinarily used in duplicate, in the customary'manner, though this isnot absolutely necessary.

" Assuming that the reins have been con- "nected to the walking beamandpolish rod 7 and that it is desired to adjust the length of the reins,the polish rod willbe disengaged they are seated and each rod will thenbe member.

given one-quarter of a turn and then raised or lowered to decrease orincrease the length of the rein as required. The rod 8, then,

7 of each rein will be given a one-quarter turn to selectively registerthe-lugs 17 with one of the pairs of sockets, whereupon the rod will belowered to seat said lugs within said sockets. be engaged with thecarrier bar or polish rod grip so as to again link up the reins with thepolish rod.

It will be see-n that it is impossible for either of the eyes 15, 16 tobecome accident- "ally disengaged during the pumping opera tion. Also,because of the impossibility of the rod 8 accidentally-making a quarterturn, the adjustment of the lengthiof the rein can not accidentallychange." I

It is preferable to employ with this rein an equalizer bar whichfunctions to automatically equalize the weight ofthe sucker rods on thereins.

From the foregoing, it will be seen that the invention provides forexceptionally rapid and arcuate adjustment of reins when the'length ofthe pumpingstroke is altered, thereby to maintain the polish rod grip inoperation as close as possible to the'stufling box of the well. r Iclaim: I V

1. A pump rein comprising side bars,'cross members connecting the sidebars and provided with openings, shoulders on the cross members atopposite sides of openings, a

"member extending between the'side bars and projectable through one ormore of said openings, a pair of lugs on the last mentioned member forselectively seating on the shoulders, a yoke connecting the bars at oneend, a connection means for the yoke, and a connection means for thelast mentioned member.

2. A pump rein comprising side bars, cross members connecting the sidebars and provided with openings, a member extending between the sidebars'and projectable through one or more of said openings and providedat one end with a T-head, pairs of shoulders in the respective openingsfor selective seating of the T-head, the diameter of the open- 7 lngs ontransverse axes passing through the associated shoulders being less thanthe long diameter of the. T-head, the diameter of the openings ontransverse axes passing above the assoclated shoulders. being greaterthan the long diameter of the T-head, the diameter of the openings, ontransverse axes passing between the associated shoulders being greaterthan the long diameter of the T-head, a yoke connecting the. side barsat one end, a connection means for the yoke, and aconnection means forthe other end of the lastm'entione'd 3; A pump" rein including sidebars,cross members connecting the side bars to provide openings, sockets forsaid side bars provided Then the eye 16 of each rein will adjacent saidcross members and having the lower ends of said sockets extending aslantdownwardly and outwardly, a member extending between the side bars andprojectable I throughone or more of said openings, a pair of lugs on thelast named member having the under face of each of said lugs extendingaslant inwardly and upwardly for selectively seating in said sockets.

1 Signed at Los Angeles, California, this 29th day of September, 1930.

JAMES P. RATIGrAN.

